User`s guide

Performing General Tests
If you are experiencing a problem that is not described under “Diagnosing a
Problem” or if you were referred here because of a particular problem, try the
appropriate test below before calling your authorized AT&T representative.
RESTART THE CONTROL
If the portion of the control unit’s memory that contains administration and
UNIT programming has been corrupted, the system may act abnormally. The
Restart procedure restores this part of the memory, which may solve the
problem. This procedure does not erase administration or programming.
You can restart the control unit by dialing a restart code from the display
console or by setting the control unit power switches.
How to Restart the Control Unit
Dialing the Restart Code:
1 Slide the T/P switch on the attendant console to P.
2 Touch Conference twice.
The administration menu appears.
3 Press [System], [Restart].
4 Slide the T/P switch to the center position.
Setting the Control Unit Switches:
1 Set all control unit power switches and any expansion unit power
switches to off.
2 Starting with the expansion units, from right to left, switch the power
back on.
The power lights on the control unit and expansion unit turn on.
If the trouble continues after you have reset the system, contact your
authorized AT&T representative.
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Troubleshooting Procedures